 | | LM35 Again
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Hi, I have been trying again to connect the LM35 temp. sensor (10mV/C) to one of the general-purpose Analog inputs (No pull-up), and I have no success, the result was the following: the analog( ) was 121, the equivalent aprox. to 250 C, obviously (...) (25 years ago, 6-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IC motion control
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It turned out my motors was drawing too much current and thus kept resetting my board. After using a separate motor supply, everything work fine. Thanks. (25 years ago, 5-Oct-99, to lugnet.robotics.handyboard)
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| | Re: HB for science project?
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I forget the web page, but I did find a JAVA compiler for the HB online! It looks great! I havent had a chance to experiment with it yet, but it uses much less memory then IC and appears to be very powerful, might want to look for that. (...) (25 years ago, 4-Oct-99, to lugnet.robotics.handyboard)
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| | Re: HB for science project?
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(...) I'm afraid that I'm not qualified to recommend any PICs, but I do know about programming. Basic can be used to implement fairly complex algorithms, but it's not easy to use it for the really tricky data structures, and it would be almost (...) (25 years ago, 4-Oct-99, to lugnet.robotics.handyboard)
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| | Re: equivalent darlington pair
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Give me your address and I will send you a ZTX614. Colin (...) (25 years ago, 4-Oct-99, to lugnet.robotics.handyboard)
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| | Using 2 polaroid ultra sonic modules simultaneously...
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How would you use two ranging modules on the the same HB simult.? There are two different ways on the HB web site but they both use TIC3 at Dig. Input 7. How else would I be able to implement this? Any help would be greatly appreciated... -- --Peter (...) (25 years ago, 4-Oct-99, to lugnet.robotics.handyboard)
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| | HB for science project?
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Hello, Recently, I have been thinking about using a HandyBoard for my science project in High School. My project will involve the writing of algorithms, and I was planning on programming in C. I have been using the Basic Stamp II (...) (25 years ago, 4-Oct-99, to lugnet.robotics.handyboard)
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| | Re: I have a Chalanging question!
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(...) This is a classic application for what is called an Instrumentation Amplifier. An IA functions just like an ordinary Op-Amp, however it typically offers close-to-rail-to-rail outputs and at least a very high input impedance. One would then use (...) (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IC motion control
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It sounds like your motors could be drawing too much current, and re-setting the board perhaps. Matt -----Original Message----- From: Giang Tran <gt4025@chi.devry.edu> To: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: 02 October 1999 (...) (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | I have a Chalanging question!
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ok I have to read a signal with almost no curent in the mv range and have it so a computer like the hb can detect it. now I dont mean just yes or no. I mean to watch the waves in the mv level and the circut cant distort it. couse dont amps just (...) (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | equivalent darlington pair
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Hi all, I have problem in getting NPN darlington ZTX614 in market.Suggest me some other Darlington pair with the equivalent characteristics of the above. Please give me the full details and kindly donot give any mailorder site's address. Jabbar (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | Re: does a common pic programer work with the sx microchips
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(...) Nope - different programming algorith, different pins used. DLC (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | Re: tiny gears
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(...) (URL) ___...___ Jonathan Pennington | -Wannabe Geologist/Anthropologist Charleston, SC | -Linux User and Advocate Email at jwp(at)awod.com | 83 V45 Magna "The Lighter Side" root@localhost (Spambot food) | 71 Triumph TR6C "Mistake" ---...--- (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | RE: tiny gears
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Kent: I'm not at work, so I don't have access to some catalogs there... but have you looked at W.M. Berg, PIC, Sterling Drive Components, etc??? I think they are all located in Connecticut, USA. hey specialize in very small precision gears and drive (...) (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IC motion control
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your motor probably draws too much current to work with the HB. unplug the motor and see if things work. if so, the problem is your motor. see the FAQ more for on how to choose a motor that works with the HB. fred In your message you said: (...) (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | tiny gears
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I'm looking for a very small set of gears. For example, I need a worm with a 0.025" diameter bore and another with a 0.040" diameter bore. Both of these could be as long as 3/8". The size of the worm gears doesn't matter too much, although I'd like (...) (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | does a common pic programer work with the sx microchips
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does a common pic programer work with the sx microchips ===== (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | IC motion control
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I am having problems with programming the handyboard using Interactive C 3.2. When I used the function fd(n) to test for continuous motor rotation, the board would crashed or it would only spin for a fraction of a second. Also, even when I put it in (...) (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IC on Irix
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(...) There's no reason there should be a problem with this. The HB interface uses fully standard serial comms protocols. All you have to do is get the right cable to connect the HB interface to your SGI. The HB interface acts like a modem with a (...) (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IC on Irix
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(...) (25 years ago, 1-Oct-99, to lugnet.robotics.handyboard)
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